Car-door lock



J. C. LEMELIN.

CAR DOOR LOCK. APPLICATION FILED MAR.25, 1922.

Patented Nov. 21, 1922.

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CAR DOOR LOCK. APPLICATIONFILED MAR.25, 1922.

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Patented Nov. 21, 1922.

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UNITED STATES JOSEPH C. LEMELIN, 0F POINT LEVIS, QUEBEC, CANAD A.

GAR-DOOR LOCK.

Application filed March 25, 1922. Serial No. 546,640.

To all whom it may concern:

Be it known that I, JOSEPH CHARLES LEM- nLIN, a subject of the King of Great Britain, residing at Point Levis, in the Province of Quebec and Dominion of Canada, have invented new and useful Improvements in Car-Door Locks, of which the following is a specification.

This invention comprehends the provision of means for locking freight car doors or the like, the said means being associated with the coupling between the cars in a manner which renders it impossible to open the door without first uncoupling the cars, and therefore is particularly useful and advantageous in preventing theft of the contents of a car.

More specifically stated, the invention provides a looking bar which is of a design for association with the car door and coupling between the cars, in a manner which prohibits the door from being opened until the cars have been uncoupled, subsequent to which the locking bar can be shifted to an inactive position.

The nature and advantages of the invention will be better understood when the following detailed description is read in connection with the accompanying drawings, the invention residing in the construction, combination, and arrangement of parts as claimed.

In the drawings forming part of this application, like numerals of reference indicate similar parts in the several views, and wherein Figure 1 is a fragmentary view, showing the association of the invention with the coupling between adjacent cars.

Figure 2 is a plan view of Figure 1, partly in section.

Figure 3 is an end elevation of one of the cars, showing the association of the device with the coupling thereof.

Figure 4f is a similar view, showing the device separated from said coupling member.

Figure 5 is a detail sectional View, showingthe manner of associating the locking bar with the door of the car.

Referring to the drawings in detail, A and B indicate respectively adjacent cars which are coupled together in any well known manner as at C. The car door is indicated at 10 and has secured to the inner side thereof a plate 11 which includes an offset portion 12 adapted to be engaged by the locking bar 13. The locking bar enters the car B through one end thereof, and is of the proper length to terminate in proximity to the plate 11, and has an offset extremity 14 adapted to engage the offset portion 12 of the plate 11 to hold the door in its closed position. That portion of the rod 13 which is arranged exteriorly of the car projects obliquely or at an angle from the rod proper and to one side thereof, and this obliquely disposed portion is indicated at 15. The obliquely disposed portion is connected with the coupling C by means of a yoke or the like 16 which surrounds the draw bar of the coupling, so that subsequent to the coupling of the cars A and B, the locking rod cannot be tampered with to effect a release of the door. It might be stated that the loop 16 can vary in shape or confi uration without departing from the spirit 0 the invention, but designed to prevent turning of the rod under any circumstances while the cars are coupled. The con struction is such that no one can possibly adjust the rod to open the door until the cars have been first uncoupled, and in this manner theft of the contents of the car is actually prevented. In order to open the door, it is necessary to uncouple the cars, separate the yoke from the draw bar of the coupling, and then turn the rod in a manner to disengage it from the plate 11.

While it is believed that from the foregoing description, the nature and advantages of the invention will be readily apparent, l desire to have it understood that I do not limit myself to what is herein shown and described, and that such changes may be resorted to when desired as fall within the scope of what is claimed.

What I claim is:-

1. Means for locking a door of a car of a train of cars, comprising a locking bar arranged in part within said car and designed to engage the door, and means for associating said rod with the coupling between the adjacent cars in a manner whereby the rod cannot be moved to an inactive position until the cars have been uncoupled.

2. Means for locking the door of a car, comprising a plate adapted to be secured to the door and including an offset portion, a locking rod arranged in part within the car and having an offset extremity adapted to engage the offset portion of the plate, and means for connecting said rod with the coupling of said car, whereby the rod ca nnot be moved subsequent to the coupling of the car. 3. Means for locking the door of a car,

comprising a locking rod arranged in part 5 within the car and desi 'ned to enga e said door, said rod projecting from one end of the car and including an obliquely disposed portion, and means for connecting said portion with the coupling of the car whereby 10 said rod cannot be moved to an inacti tion While the ear is coupled.

ve posi- 4. Means for locking the door of a car, comprising alocking rod arranged in part Within the car and designed to engage said door, said rod projecting from one end of 

